Paper-roll-holding means.



M. L. HIRSCH & G. W. BLAGKSTOCK. PAPER ROLL HOLDING MEANS.

APPLICATION FILED FBB.6,1U18.

1,1 19,428, Patented De0.1,1914.

WITNESSES 4 lNIfE/YfiRS M is 04 hw'ae/ev Z .7: M a7. V/lllvrney 8'UNITED STATES PATENT OFFICE.

MONTEFIOBE L. HIRSGH AND GEORGE W. BLACKSTOCK, 0F BALTIMORE, MARYLAND;SAID BLACKSTOCK ASSIGNOR T0 SAID HIRSCH.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Original application filed February 21, 1912, Serial No. 678,984.Divided and this application filed February a 6, 1913. Serial No.746,613.

To all whom it may concern:

Be it known that we, MONTEFIORE L. HmscH and Gnoucr. W. Bmcxs'rocn,citizens of the United States, residing at Baltimore, in the State ofMaryland, have invented new and useful Improvements inPaper-Roll-Holding Means, of which the following is a specification.

Our invention pertains to web roll holding means, and contemplates theprovision of peculiar and practically advantageous web roll holdingmeans designed more especially for use in the paper bag machineconstituting the subject matter of our contemporary application, filedFeb. 21, 1912, Serial Number 678,984, of which this application is adivision.

The novelty, utility and practical advantages of the present inventionwill be fully understood from the following description and claims whenthe same are read in connection with the drawings, accompanying andforming part of this specification, in which:

Figure 1 is a view, partly in section and partly in elevation, of therear end of the machine referred to; the web-roll or roll of paper beingshown in diametrical section. Fig. 2 is an enlarged detail section. Fig.3 is an enlarged detail section on the line 33 of Fig. 1. Fig. 4 is adetail view taken at a right angle to Fig. 1 and showing the frictionbearing for shaft 1.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

The main frame of the machine may be of any construction and designconsonant with the purpose of our invention. At the rear end of the mainframe is arranged a transverse shaft 1 on which is mounted a roll ofpaper 2; a continuous strip of paper being drawn from the said rollduring the operation of the machine, and the roll 2 and shaft 1 beingrotated in consequence. At one end the roll 2 being against a suitableabutment on the shaft 1, the said abutment being preferabl in the formof a plug 3 that is feathere on and adjustable endwise of the shaft andis backed by an adjusting wheel 4, threaded on the shaft. At 5 the shaft1 has fixed thereon a friction drum which bears partly in a fixed block6 and partly in a movable block 7, backed by a screw 8. By turning thescrew 8 outward to permit of movement of the block 7 away from the block6, the friction on the drum 5 and the retardation of the 1011 2 islessened as the roll is diminished in diameter and the leverage exertedby the pull of the paper off the roll is decreased. In this way thepaper strip or web drawn off the roll may always be kept under propertension to assure perfect working of the machine. The paper roll 2 istightly held against the abutment 3 and thereby fixed with respect tothe shaft 1 by a plug 9, adjustable lengthwise on the shaft. This plug 9is kerfed at 10, and in the said kerf is pivoted a pawl 11 which servesby engaging teeth 11 of the shaft 1 to hold the plug against outwardmovement. Obviously in positioning the plug 9, it is simply necessaryfor the op erator to move the same inward to the extent desired and seatthe pawl 11 in one of the interdental spaces of the shaft when the plugwill be strongly and safely held against outward movement. For thepurpose of adjusting the shaft 1 and the paper roll 2 lengthwise andadjustably fixing the roll in proper alinement, we provide a notched andlaterally movable bearing 12 in which the circumferentially-groovedportion of shaft 1 is seated, and we also provide an adjusting screw 14that is threaded in the adjacent portion of the main frame and isjournaled and held against endwise movement in the bearing 12. Obviouslyby turning the screw 14 in one direction, the shaft 1 and roll 2 will bemoved as a unit toward the right and by turning the screw in the otherdirection the shaft and roll will be similarly moved toward the left.From the roll 2 the strip or web of paper is passed upwardly as shown.

It will be manifest from the foregoing that the outward pressure exertedby the roll of paper against the plug 9 will operate to securely holdthe pawl 11 in one of the interdental spaces of the shaft 1, and hencethere is no liability of the plug being casually released while theshaft 1 and the roll are being rotated by the drawing of paper from thelatter. When, however, it is desired to position the plug 9 at adifferent point in the length of the shaft 1,

the same can be readily accomplished after hammer blows are imposed onthe upper arm of the pawl 11 to lift the lower arm thereof out of theparticular interdental space of the shaft. When the plug9 is pushedinwardly to position, the pawl 11 will obviously ride over the beveledteeth of shaft 1 and will seat in the particular interdental spacepresented to it when plug 9 is in the position desired.

Having described our invention, what We claim and desire to secure byLetters-Patent, is

1. The combination of supporting means, a shaft mounted therein andhaving a longitudinal series of teeth beveled at their outer sides, anabutment on the shaft adapted to rest at one end of a roll of paper, aplug movable lengthwise on the shaft and adapted to be positioned at theopposite end of the roll and having a kerf in the outer portion of itsouter end, and a pawl pivoted at an intermediate point of its length insaid kerf and to the plug and having an outer arm positioned to rideinwardly-over the teeth and to seat inthe interdental spaces of theshaft, and also having an inner arm that projects beyond the outline ofthe upper portion of the plug and is adapted to be inmates struck andforced downwardly by a ham mer or the like.

2. The combination of supporting means, an endwise movable shaft havinga circum ferential groove adjacent one of its ends and a friction drumadjacent its opposite end, a block arranged on the supporting means andforming a bearing for the friction drum at one side of said drum, amovable block supported by the supporting means and affording a bearingfor the friction drum at the opposite side thereof, a screw bearing inthe supporting means and backing the movable block, a laterally movablebearing; in which the circumferentially-grooved portion of the shaft isseated, and an adjusting screw threaded in the-supporting means andjournaled and held against endwise movement in said bearing foradjusting the shaft and the friction drum in the direction of the lengththereof.

lin testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

MONTEFIORE L. HIRSCH. GEORGE W. BLACKSTOGK. Witnesses:

WM. D. lPonLTNnY, G. F. Smnvrz.

